JunMo Hong / Mbed 2 deprecated cubebite_rnd_SPSGRFC433

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Dependencies:   mbed

Fork of HelloWorld_IDS01A4 by ST

main.cpp@1:cf2e2f85bf8d, 2017-06-19 (annotated)

Committer:
rosarium
Date:
Mon Jun 19 08:23:08 2017 +0000
Revision:
1:cf2e2f85bf8d
Parent:
0:2ddc0583bcec
Child:
2:a0677b17a570
Updated main.cpp

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rosarium 0:2ddc0583bcec 1 /**
rosarium 0:2ddc0583bcec 2 ******************************************************************************
rosarium 0:2ddc0583bcec 3 * @file main.cpp
rosarium 0:2ddc0583bcec 4 * @author Rosarium PILA, STMicroelectronics
rosarium 0:2ddc0583bcec 5 * @version V1.0.0
rosarium 0:2ddc0583bcec 6 * @date May 17th, 2017
rosarium 1:cf2e2f85bf8d 7 * @brief mbed Hello World test application for the STMicroelectronics X-NUCLEO-IDB01A4/5
rosarium 0:2ddc0583bcec 8 * Spirit1 Expansion Board
rosarium 0:2ddc0583bcec 9 ******************************************************************************
rosarium 0:2ddc0583bcec 10 * @attention
rosarium 0:2ddc0583bcec 11 *
rosarium 0:2ddc0583bcec 12 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
rosarium 0:2ddc0583bcec 13 *
rosarium 0:2ddc0583bcec 14 * Redistribution and use in source and binary forms, with or without modification,
rosarium 0:2ddc0583bcec 15 * are permitted provided that the following conditions are met:
rosarium 0:2ddc0583bcec 16 * 1. Redistributions of source code must retain the above copyright notice,
rosarium 0:2ddc0583bcec 17 * this list of conditions and the following disclaimer.
rosarium 0:2ddc0583bcec 18 * 2. Redistributions in binary form must reproduce the above copyright notice,
rosarium 0:2ddc0583bcec 19 * this list of conditions and the following disclaimer in the documentation
rosarium 0:2ddc0583bcec 20 * and/or other materials provided with the distribution.
rosarium 0:2ddc0583bcec 21 * 3. Neither the name of STMicroelectronics nor the names of its contributors
rosarium 0:2ddc0583bcec 22 * may be used to endorse or promote products derived from this software
rosarium 0:2ddc0583bcec 23 * without specific prior written permission.
rosarium 0:2ddc0583bcec 24 *
rosarium 0:2ddc0583bcec 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
rosarium 0:2ddc0583bcec 26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
rosarium 0:2ddc0583bcec 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
rosarium 0:2ddc0583bcec 28 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
rosarium 0:2ddc0583bcec 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
rosarium 0:2ddc0583bcec 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
rosarium 0:2ddc0583bcec 31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
rosarium 0:2ddc0583bcec 32 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
rosarium 0:2ddc0583bcec 33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
rosarium 0:2ddc0583bcec 34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
rosarium 0:2ddc0583bcec 35 *
rosarium 0:2ddc0583bcec 36 ******************************************************************************
rosarium 0:2ddc0583bcec 37 */
rosarium 0:2ddc0583bcec 38
rosarium 0:2ddc0583bcec 39 #include "mbed.h"
rosarium 0:2ddc0583bcec 40 #include "SimpleSpirit1.h"
rosarium 0:2ddc0583bcec 41
rosarium 1:cf2e2f85bf8d 42 #define TEST_STR_LEN (32)
rosarium 0:2ddc0583bcec 43 static uint8_t send_buf[TEST_STR_LEN] ={'S','P','I','R','I','T','1',' ','H','E','L','L','O',' ','W','O','R','L','D',' ','P','2','P',' ','D','E','M','O'};
rosarium 0:2ddc0583bcec 44 static uint8_t read_buf[TEST_STR_LEN] ={'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0'};
rosarium 1:cf2e2f85bf8d 45
rosarium 1:cf2e2f85bf8d 46 static SimpleSpirit1 &myspirit = SimpleSpirit1::CreateInstance(D11, D12, D3, D9, D10, D2); //RPi: (SPI_CLK) = (D13:PA5:resistorR7 --> D3:PB3:resistorR4)
rosarium 0:2ddc0583bcec 47
rosarium 1:cf2e2f85bf8d 48 volatile bool rx_done_flag = 0;
rosarium 1:cf2e2f85bf8d 49 volatile bool tx_done_flag = 0;
rosarium 0:2ddc0583bcec 50
rosarium 0:2ddc0583bcec 51 static int curr_len = 0;
rosarium 0:2ddc0583bcec 52 unsigned char myValue = 0;
rosarium 0:2ddc0583bcec 53
rosarium 1:cf2e2f85bf8d 54 InterruptIn event(USER_BUTTON); //RPi : //Added interrupt event to give userinterface to send pkt.
rosarium 0:2ddc0583bcec 55
rosarium 1:cf2e2f85bf8d 56 /**
rosarium 1:cf2e2f85bf8d 57 * @brief callback_func
rosarium 1:cf2e2f85bf8d 58 * @param callback event
rosarium 1:cf2e2f85bf8d 59 * @retval None.
rosarium 1:cf2e2f85bf8d 60 */
rosarium 0:2ddc0583bcec 61 static void callback_func(int event)
rosarium 0:2ddc0583bcec 62 {
rosarium 1:cf2e2f85bf8d 63 if(event == SimpleSpirit1::RX_DONE)
rosarium 1:cf2e2f85bf8d 64 {
rosarium 1:cf2e2f85bf8d 65 rx_done_flag = 1;
rosarium 1:cf2e2f85bf8d 66 }
rosarium 1:cf2e2f85bf8d 67 else if (event == SimpleSpirit1::TX_DONE)
rosarium 1:cf2e2f85bf8d 68 {
rosarium 1:cf2e2f85bf8d 69 tx_done_flag = 1;
rosarium 1:cf2e2f85bf8d 70 }
rosarium 0:2ddc0583bcec 71 }
rosarium 0:2ddc0583bcec 72
rosarium 1:cf2e2f85bf8d 73
rosarium 1:cf2e2f85bf8d 74 /**
rosarium 1:cf2e2f85bf8d 75 * @brief send_data
rosarium 1:cf2e2f85bf8d 76 * @param None
rosarium 1:cf2e2f85bf8d 77 * @retval None
rosarium 1:cf2e2f85bf8d 78 */
rosarium 0:2ddc0583bcec 79 void send_data(void)
rosarium 1:cf2e2f85bf8d 80 {
rosarium 1:cf2e2f85bf8d 81 printf("\r\n***Sending a packet***\r\n");
rosarium 0:2ddc0583bcec 82
rosarium 0:2ddc0583bcec 83 while(myspirit.is_receiving()); // wait for ongoing RX ends
rosarium 1:cf2e2f85bf8d 84
rosarium 0:2ddc0583bcec 85 curr_len = strlen((const char*)send_buf) + 1;
rosarium 0:2ddc0583bcec 86 myspirit.send(send_buf, curr_len);
rosarium 0:2ddc0583bcec 87 }
rosarium 1:cf2e2f85bf8d 88 /**
rosarium 1:cf2e2f85bf8d 89 * @brief main routine
rosarium 1:cf2e2f85bf8d 90 * @param None
rosarium 1:cf2e2f85bf8d 91 * @retval int
rosarium 1:cf2e2f85bf8d 92 */
rosarium 0:2ddc0583bcec 93 int main()
rosarium 1:cf2e2f85bf8d 94 {
rosarium 1:cf2e2f85bf8d 95 DigitalOut TestLED = D5; //RPi //LED of IDS01A4/5
rosarium 1:cf2e2f85bf8d 96 TestLED = 0; //RPi //LED off
rosarium 0:2ddc0583bcec 97
rosarium 0:2ddc0583bcec 98 myspirit.attach_irq_callback(callback_func);
rosarium 0:2ddc0583bcec 99
rosarium 0:2ddc0583bcec 100 myspirit.on();
rosarium 0:2ddc0583bcec 101
rosarium 0:2ddc0583bcec 102 printf("\n**************HelloWorld mbed demo for Spirit1 (X-NUCLEO-IDS01A4/5)**************\r\n");
rosarium 0:2ddc0583bcec 103 printf("\nPress User Button on one of the two boards to send a packaet to the other and the LED D1 on the receiver X-NUCLEO-IDS01A4/5 should toggle \n\r\n");
rosarium 0:2ddc0583bcec 104
rosarium 1:cf2e2f85bf8d 105 event.rise(&send_data); //RPi: User button interrupt trigger to send data
rosarium 1:cf2e2f85bf8d 106
rosarium 0:2ddc0583bcec 107 while(1)
rosarium 0:2ddc0583bcec 108 {
rosarium 1:cf2e2f85bf8d 109 __WFE(); // low power in idle condition., waiting for an event
rosarium 0:2ddc0583bcec 110
rosarium 1:cf2e2f85bf8d 111 if(rx_done_flag)
rosarium 0:2ddc0583bcec 112 {
rosarium 1:cf2e2f85bf8d 113 rx_done_flag = 0;
rosarium 1:cf2e2f85bf8d 114
rosarium 1:cf2e2f85bf8d 115 for(unsigned int flush_count = 0; flush_count < TEST_STR_LEN; flush_count++) read_buf[flush_count] = 0 ;//RPi:clear the read buffer
rosarium 0:2ddc0583bcec 116
rosarium 0:2ddc0583bcec 117 int ret = myspirit.read(read_buf, sizeof(read_buf));
rosarium 0:2ddc0583bcec 118
rosarium 1:cf2e2f85bf8d 119 myValue = 1 - myValue;
rosarium 1:cf2e2f85bf8d 120 TestLED = myValue; //RPi: Toggle LED at the receiver
rosarium 0:2ddc0583bcec 121
rosarium 0:2ddc0583bcec 122 if(ret == 0) {
rosarium 0:2ddc0583bcec 123 printf("\nNothing to read\n\r");
rosarium 0:2ddc0583bcec 124 continue;
rosarium 0:2ddc0583bcec 125 }
rosarium 0:2ddc0583bcec 126 printf("\r\n***Received a packet***\r\n\rReceived string = '%s' (len=%d) \n\r", read_buf, ret);
rosarium 1:cf2e2f85bf8d 127 }
rosarium 1:cf2e2f85bf8d 128
rosarium 1:cf2e2f85bf8d 129 else if (tx_done_flag)
rosarium 1:cf2e2f85bf8d 130 {
rosarium 1:cf2e2f85bf8d 131 tx_done_flag = 0;
rosarium 1:cf2e2f85bf8d 132 printf("\r\n***Packet sent***\r\nSent string ='%s' (len=%d)\n\r", send_buf, strlen((const char*)send_buf) + 1);
rosarium 1:cf2e2f85bf8d 133 }
rosarium 0:2ddc0583bcec 134 }
rosarium 0:2ddc0583bcec 135
rosarium 0:2ddc0583bcec 136 myspirit.off();
rosarium 0:2ddc0583bcec 137
rosarium 0:2ddc0583bcec 138 return 0;
rosarium 0:2ddc0583bcec 139 }
rosarium 0:2ddc0583bcec 140
rosarium 0:2ddc0583bcec 141
rosarium 0:2ddc0583bcec 142